qpainter drawtext boundingRect problem

[hayzel]

Problem solved.
It was wrong that I scaled the painter to (1/m11,1/m22)
Using :

painter->save();
painter->translate(pos);
m11=painter->matrix().m11();m22=painter->matrix().m22();
painter->scale(1.0,-yAxisSign()*1.0);

painter->save();
painter->translate(pos);
m11=painter->matrix().m11();m22=painter->matrix().m22();
painter->scale(1.0,-yAxisSign()*1.0);

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the problem is gone.
Though I have the question , why the painter->font() didn't change its fontMetrics() and why painter->drawText() was returning the wrong boundingRect when I DID change the scale.